Camera system of mobile device

ABSTRACT

A camera system of a mobile device includes: a sensor module disposed in a first body connected to a rotation member of the mobile device; and a lens module disposed in a second body connected to the rotation member. When the first body and the second body are rotated with respect to the rotation member to overlap each other, optical axes of the sensor module and the lens module correspond to each other and are operated as a common camera system, and the common camera system provides a first photographing mode and a second photographing mode with different viewing angles based on two focuses generated by a first geometry phase lens included in the lens module.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a continuation of U.S. patent application Ser. No.17/689,938, filed on Mar. 8, 2022, which claims priority to KoreanPatent Application No. 10-2021-0031031, filed on Mar. 9, 2021, and allthe benefits accruing therefrom under 35 U.S.C. § 119, the content ofwhich in its entirety is herein incorporated by reference.

BACKGROUND (a) Field

The disclosure relates to a camera system of a mobile device.

(b) Description of the Related Art

As technology develops, performance of cameras installed in mobiledevices such as mobile phones has been substantially improved, and theperformance of the cameras has become a major sales point of the mobilephones. Recently, mobile phones in which a camera with different fixedfocuses is installed have been released in the market, and large sensorsin which a zooming function is realized or with improved image qualityare used for a camera system thereof.

SUMMARY

Embodiments of the invention provide a camera system including a sensormodule and a lens module individually installed in two bodies folded byan in-folding method.

Embodiments of the invention provide a camera system including a sensormodule and a lens module individually installed in two bodies folded byan out-folding method.

Embodiments of the invention provide a camera system including a sensormodule and a lens module individually installed in three bodies foldedby an in-folding and an out-folding method.

An embodiment of the invention provides a camera system of a mobiledevice. In such an embodiment, the camera system includes: a sensormodule disposed in a first body connected to a rotation member of themobile device, where the sensor module includes an image sensor; and alens module disposed in a second body connected to the rotation member,where the lens module includes a first geometry phase (“GP”) lens and atleast one optical lens, where the sensor module and the lens module aredisposed below a surface of a display panel supported by the first bodyand the second body, the display panel is foldable in an in-folding way,and when the first body and the second body are rotated with respect tothe rotation member to overlap each other, the sensor module and thelens module are operated as a common camera system, a first beam inputthrough the lens module passes through at least one opening of thedisplay panel folded in the in-folding way and is processed by the imagesensor, and the common camera system provides a first photographing modeand a second photographing mode with different viewing angles based ontwo focuses generated by the first GP lens.

In an embodiment, the sensor module may further include a second GPlens, the sensor module may be selectively operated as an individualcamera system, and when the sensor module is operated as the individualcamera system to convert a second beam input from the display panel intoimage data, the sensor module may provide a third photographing mode anda fourth photographing mode with different viewing angles based on twofocuses generated by the second GP lens.

In an embodiment, when the sensor module is operated as the commoncamera system with the lens module to convert the first beam into imagedata, the sensor module and the lens module may provide a fifthphotographing mode, a sixth photographing mode, a seventh photographingmode, and an eighth photographing mode with different viewing anglesbased on the two focuses generated by the first GP lens and the twofocuses generated by the second GP lens.

In an embodiment, the lens module may further include a polarizationselecting device in front of the first GP lens with respect to anincident direction of the first beam, and the polarization selectingdevice may electrically or mechanically modulate a polarization state ofa beam input to the first GP lens.

In an embodiment, the sensor module may further include a polarizationselecting device in front of the image sensor with respect to anincident direction of the second beam, and the polarization selectingdevice may electrically or mechanically modulate a polarization state ofa beam input to the image sensor.

In an embodiment, the sensor module may further include a firstpolarization selecting device in front of the image sensor and a secondpolarization selecting device in front of the second GP lens withrespect to an incident direction of the second beam, the firstpolarization selecting device may electrically or mechanically modulatea polarization state of a beam input to the image sensor, and the secondpolarization selecting device may electrically or mechanically modulatea polarization state of a beam input to the second GP lens.

In an embodiment, the image sensor may include a red band processinglayer, a green band processing layer, and a blue band processing layer,and the red band processing layer, the green band processing layer, andthe blue band processing layer may respectively process a red band beam,a green band beam, and a blue band beam refracted with differentrefractive indexes by the first GP lens.

In an embodiment, the red band processing layer, the green bandprocessing layer, and the blue band processing layer may be stacked inorder of the red band processing layer, the green band processing layer,and the blue band processing layer with respect to the incidentdirection of the first beam in the image sensor.

In an embodiment, the red band processing layer, the green bandprocessing layer, and the blue band processing layer may be stacked inorder of the blue band processing layer, the green band processinglayer, and the red band processing layer with respect to the incidentdirection of the first beam in the image sensor.

In an embodiment, the image sensor may include a red band image sensor,a green band image sensor, and a blue band image sensor, and the redband image sensor, the green band image sensor, and the blue band imagesensor may be respectively disposed on a predetermined side in athree-dimensional shape of the image sensor.

In an embodiment, the image sensor may include a red band image sensor,a green band image sensor, and a blue band image sensor, and the redband image sensor, the green band image sensor, and the blue band imagesensor may be respectively disposed on a two-dimensional plane of theimage sensor.

In an embodiment, the sensor module may realize a zooming functiontogether with the lens module by moving the image sensor within apredetermined range of the sensor module.

In an embodiment, the at least one opening may include a first openingcorresponding to the sensor module and a second opening corresponding tothe lens module, and when the display panel is folded in the in-foldingway, the first beam may pass through the first opening and the secondopening and may be transmitted to the sensor module in the lens module,and the first opening and the second opening may have different sizesfrom each other.

In an embodiment, the first opening may be bigger than the secondopening.

In an embodiment, the at least one opening may be disposed inside orbelow the display panel, and a plurality of fine holes may be defined ina predetermined portion of the display panel to overlap the at least oneopening, or a part of the display panel may be transparent.

An embodiment of the invention provides a camera system of a mobiledevice. In such an embodiment, the camera system includes: a sensormodule disposed in a first body connected to a rotation member of themobile device, where the sensor module includes an image sensor; and alens module disposed in a second body connected to the rotation member,where the lens module includes a first GP lens, where the sensor moduleand the lens module may be disposed below a surface of a display panelsupported by the first body and the second body, the display panel isfoldable in an out-folding way, and when the first body and the secondbody are rotated with respect to the rotation member to overlap eachother, the sensor module and the lens module may be operated as a commoncamera system, a first beam input through the display panel folded inthe out-folding way passes through respective openings in the sensormodule and the lens module and is processed by the image sensor, and thecommon camera system may provide a first photographing mode and a secondphotographing mode with different viewing angles based on two focusesgenerated by the first GP lens.

In an embodiment, the sensor module may further include a second GPlens, the sensor module may be selectively operated as an individualcamera system, and when the sensor module is operated as the individualcamera system to convert a second beam input from a first opening in thesensor module into image data, the sensor module may provide a thirdphotographing mode and a fourth photographing mode with differentviewing angles based on two focuses generated by the second GP lens.

In an embodiment, when the sensor module is operated as the commoncamera system with the lens module to convert the first beam into imagedata, the sensor module and the lens module may provide a fifthphotographing mode, a sixth photographing mode, a seventh photographingmode, and an eighth photographing mode with different viewing anglesbased on the two focuses generated by the first GP lens and the twofocuses generated by the second GP lens.

In an embodiment, the lens module may further include a polarizationselecting device in front of the first GP lens with respect to anincident direction of the first beam, and the polarization selectingdevice may electrically or mechanically modulate a polarization state ofa beam input to the first GP lens.

In an embodiment, the sensor module may further include a polarizationselecting device in front of the image sensor with respect to anincident direction of the second beam, and the polarization selectingdevice may electrically or mechanically modulate a polarization state ofa beam input to the image sensor.

In an embodiment, the sensor module may further include a firstpolarization selecting device in front of the image sensor with respectto an incident direction of the second beam and a second polarizationselecting device in front of the second GP lens, the first polarizationselecting device may electrically or mechanically modulate apolarization state of a beam input to the image sensor, and the secondpolarization selecting device may electrically or mechanically modulatea polarization state of a beam input to the second GP lens.

In an embodiment, the image sensor may include a red band processinglayer, a green band processing layer, and a blue band processing layer,and the red band processing layer, the green band processing layer, andthe blue band processing layer may respectively process a red band beam,a green band beam, and a blue band beam refracted with differentrefractive indexes by the first GP lens.

In an embodiment, the red band processing layer, the green bandprocessing layer, and the blue band processing layer may be stacked inorder of the red band processing layer, the green band processing layer,and the blue band processing layer with respect to the incidentdirection of the first beam in the image sensor.

In an embodiment, the red band processing layer, the green bandprocessing layer, and the blue band processing layer may be stacked inorder of the blue band processing layer, the green band processinglayer, and the red band processing layer with respect to the incidentdirection of the first beam in the image sensor.

In an embodiment, the image sensor may include a red band image sensor,a green band image sensor, and a blue band image sensor, and the redband image sensor, the green band image sensor, and the blue band imagesensor may be respectively disposed on a predetermined side in athree-dimensional shape of the image sensor.

In an embodiment, the image sensor may include a red band image sensor,a green band image sensor, and a blue band image sensor, and the redband image sensor, the green band image sensor, and the blue band imagesensor may be respectively disposed on a two-dimensional plane of theimage sensor.

In an embodiment, the sensor module may realize a zooming functiontogether with the lens module by moving the image sensor within apredetermined range of the sensor module.

In an embodiment, when the display panel is folded in the out-foldingway, the first beam may pass through the display panel and may then betransmitted to the sensor module from the lens module through a firstopening in the lens module and a second opening in the sensor module,and the first opening and the second opening may have a same size aseach other.

In an embodiment, a first opening in the lens module may be disposedinside or below the display panel, and a plurality of fine holes may bedefined in a predetermined portion of the display panel to overlap thefirst opening or a part of the display panel may be transparent.

An embodiment of the invention provides a camera system of a mobiledevice. In such an embodiment, the camera system includes: a sensormodule installed in a first body connected to a first rotation member ofthe mobile device, where the sensor module includes an image sensor; afirst lens module disposed in a second body respectively connected to afirst rotation member and a second rotation member of the mobile device,where the first lens module includes a first GP lens; and a second lensmodule disposed in a third body connected to the second rotation member,where the second lens module includes a second GP lens. In such anembodiment, the sensor module, the first lens module, and the secondlens module may be disposed below a surface of a display panel supportedby the first body, the second body, and the third body, the first bodyand the second body are foldable with respect to the first rotationmember and overlap each other in an in-folding way and the second bodyand the third body are foldable with respect to the second rotationmember and overlap each other in an out-folding way, and when the firstbody and the second body are rotated with respect to the first rotationmember and overlap each other in the in-folding way and the second bodyand the third body are rotated with respect to the second rotationmember and overlap each other in the out-folding way, the sensor module,the first lens module, and the second lens module may be operated as acommon camera system, and the common camera system may provide fourphotographing modes with different viewing angles based on two focusesgenerated by the first GP lens and two focuses generated by the secondGP lens.

An embodiment of the invention provides a camera system of a mobiledevice. In such an embodiment, the camera system includes: a sensormodule disposed in a first body connected to a rotation member of themobile device; and a lens module disposed in a second body connected tothe rotation member, where when the first body and the second body arerotated with respect to the rotation member to overlap each other,optical axes of the sensor module and the lens module may correspond toeach other to configure a common camera system, and the common camerasystem may provide a first photographing mode and a second photographingmode with different viewing angles based on two focuses generated by afirst GP lens included in the lens module.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a cross-sectional view of a camera system of a mobiledevice according to an embodiment.

FIG. 2 shows a cross-sectional view of a camera system of a foldedmobile device according to an embodiment.

FIG. 3 shows a cross-sectional view of a camera system of a mobiledevice according to an alternative embodiment.

FIG. 4 shows a cross-sectional view of a camera system of a foldedmobile device according to an alternative embodiment.

FIG. 5 shows a cross-sectional view of a camera system of a foldedmobile device according to another alternative embodiment.

FIG. 6 shows a perspective view of an in-folding mobile device accordingto an embodiment.

FIG. 7 shows a perspective view of an in-folding mobile device accordingto an alternative embodiment.

FIG. 8 shows a schematic view of a camera system according to anembodiment.

FIG. 9 shows a schematic view of a camera system according to analternative embodiment.

FIG. 10 shows a schematic view of a sensor module according to anembodiment.

FIG. 11 shows a schematic view of a sensor module according to analternative embodiment.

FIG. 12 shows a schematic view of a camera system of a foldable mobiledevice according to an embodiment.

FIG. 13 shows a schematic view of an optical path of a camera systemshown in FIG. 12 .

FIG. 14A, FIG. 14B and FIG. 15 show schematic views of a camera systemof a mobile device according to an alternative embodiment.

FIG. 16 shows a perspective view of a sliding-type mobile deviceaccording to an embodiment.

FIG. 17 shows a perspective view of a pivot-type mobile device accordingto an embodiment.

DETAILED DESCRIPTION

The invention now will be described more fully hereinafter withreference to the accompanying drawings, in which various embodiments areshown. This invention may, however, be embodied in many different forms,and should not be construed as limited to the embodiments set forthherein. Rather, these embodiments are provided so that this disclosurewill be thorough and complete, and will fully convey the scope of theinvention to those skilled in the art. Like reference numerals refer tolike elements throughout.

It will be understood that when an element is referred to as being “on”another element, it can be directly on the other element or interveningelements may be present therebetween. In contrast, when an element isreferred to as being “directly on” another element, there are nointervening elements present.

The terminology used herein is for the purpose of describing particularembodiments only and is not intended to be limiting. As used herein,“a”, “an,” “the,” and “at least one” do not denote a limitation ofquantity, and are intended to include both the singular and plural,unless the context clearly indicates otherwise. For example, “anelement” has the same meaning as “at least one element,” unless thecontext clearly indicates otherwise. “At least one” is not to beconstrued as limiting “a” or “an.” “or” means “and/or.” As used herein,the term “and/or” includes any and all combinations of one or more ofthe associated listed items. It will be further understood that theterms “comprises” and/or “comprising,” or “includes” and/or “including”when used in this specification, specify the presence of statedfeatures, regions, integers, steps, operations, elements, and/orcomponents, but do not preclude the presence or addition of one or moreother features, regions, integers, steps, operations, elements,components, and/or groups thereof.

It will be understood that, although the terms “first,” “second,”“third” etc. may be used herein to describe various elements,components, regions, layers and/or sections, these elements, components,regions, layers and/or sections should not be limited by these terms.These terms are only used to distinguish one element, component, region,layer or section from another element, component, region, layer orsection. Thus, “a first element,” “component,” “region,” “layer” or“section” discussed below could be termed a second element, component,region, layer or section without departing from the teachings herein.

Furthermore, relative terms, such as “lower” or “bottom” and “upper” or“top,” may be used herein to describe one element's relationship toanother element as illustrated in the Figures. It will be understoodthat relative terms are intended to encompass different orientations ofthe device in addition to the orientation depicted in the Figures. Forexample, if the device in one of the figures is turned over, elementsdescribed as being on the “lower” side of other elements would then beoriented on “upper” sides of the other elements. The term “lower,” cantherefore, encompasses both an orientation of “lower” and “upper,”depending on the particular orientation of the figure. Similarly, if thedevice in one of the figures is turned over, elements described as“below” or “beneath” other elements would then be oriented “above” theother elements. The terms “below” or “beneath” can, therefore, encompassboth an orientation of above and below.

“About” or “approximately” as used herein is inclusive of the statedvalue and means within an acceptable range of deviation for theparticular value as determined by one of ordinary skill in the art,considering the measurement in question and the error associated withmeasurement of the particular quantity (i.e., the limitations of themeasurement system). For example, “about” can mean within one or morestandard deviations, or within ±30%, 20%, 10% or 5% of the stated value.

Unless otherwise defined, all terms (including technical and scientificterms) used herein have the same meaning as commonly understood by oneof ordinary skill in the art to which this disclosure belongs. It willbe further understood that terms, such as those defined in commonly useddictionaries, should be interpreted as having a meaning that isconsistent with their meaning in the context of the relevant art and thepresent disclosure, and will not be interpreted in an idealized oroverly formal sense unless expressly so defined herein.

Embodiments are described herein with reference to cross sectionillustrations that are schematic illustrations of idealized embodiments.As such, variations from the shapes of the illustrations as a result,for example, of manufacturing techniques and/or tolerances, are to beexpected. Thus, embodiments described herein should not be construed aslimited to the particular shapes of regions as illustrated herein butare to include deviations in shapes that result, for example, frommanufacturing. For example, a region illustrated or described as flatmay, typically, have rough and/or nonlinear features. Moreover, sharpangles that are illustrated may be rounded. Thus, the regionsillustrated in the figures are schematic in nature and their shapes arenot intended to illustrate the precise shape of a region and are notintended to limit the scope of the present claims.

Hereinafter, embodiments of the invention will be described in detailwith reference to the accompanying drawings.

FIG. 1 shows a cross-sectional view of a camera system of a mobiledevice according to an embodiment.

Referring to FIG. 1 , an embodiment of the mobile device may include afirst body 100, a second body 200, and a rotation member 20. The firstbody 100 and the second body 200 may be respectively connected to therotation member 20, and they may be relatively rotated with respect to arotation axis formed or defined by the rotation member 20. The firstbody 100 and the second body 200 may configure or form an angle of about0° to about 360° with each other.

Referring to FIG. 1 , the first body 100 and the second body 200 maysupport the display panel 10. In an embodiment, the mobile device may bean in-folding mobile device that is folded in a way such that thedisplay panel 10 of the mobile device may not be exposed. In such anembodiment, when the first body 100 and the second body 200 overlap eachother as the mobile device is folded, the display panel 10 may not beexposed to the outside. In such an embodiment, when the first body 100and the second body 200 are unfolded with respect to the rotation member20 (i.e., the first body 100 and the second body 200 configure about180° with each other), the display panel 10 is unfolded to make amaximum area, and when the first body 100 and the second body 200overlap each other (i.e., the first body 100 and the second body 200configure about 0° with each other), the display panel 10 may not beseen.

Referring to FIG. 1 , in an embodiment, a sensor module 110 may beinstalled in the first body 100, and the sensor module 110 may includean image sensor 113. The sensor module 110 may further include ageometry phase (“GP”) lens 111 and at least one optical lens 112 so thatthe sensor module 110 may be operable as an independent optical system.The at least one optical lens 112 may be positioned between the imagesensor 113 and the GP lens 111, or the GP lens 111 may be positionedbetween the at least one optical lens 112 and the image sensor 113. Inan embodiment, the sensor module 110 may include a plurality of GPlenses.

In an embodiment, for example, a camera system may be operable in aselfie mode for photographing an object on the front of the displaypanel 10 and landscapes by using the sensor module 110. Referring toFIG. 1 , the sensor module 110 may produce image data from beams({circle around (1)}). That is, when the sensor module 110 is operatedas one independent optical system, the sensor module 110 may convert thebeam ({circle around (1)}) into image data using the GP lens 111, atleast one optical lens 112, and the image sensor 113. In an alternativeembodiment, the sensor module 110 may convert the beam ({circle around(1)}) into image data using a plurality of GP lenses 111 and the imagesensor 113.

In an embodiment, an opening 11 for the sensor module 110 may be defined(or under-paneled) inside the display panel 10 or below the displaypanel 10. In such an embodiment, a fine hole may be formed in a portionof the display panel 10 covering the opening 11 or the portion of thedisplay panel 10 covering the opening 11 may be transparent. In analternative embodiment, the opening 11 may have a shape (a punch hole)defined through the display panel 10. The beam ({circle around (1)})input through the opening 11 passes through the GP lens 111 and theoptical lens 112 and reaches the image sensor 113, and the beam ({circlearound (1)}) input therethrough may be converted into the image data bythe image sensor 113.

The GP lenses 111 and 211 may modulate the beam according to apolarization state of the incident beam and may form a focus of the beamhaving been transmitted through the GP lens at two or more points. In anembodiment, for example, when the polarization of the incident beam isright-handed circular polarization (“RHCP”), the GP lenses 111 and 211may modulate a polarization rotating direction into the left (i.e., RHCPto left-handed circular polarization (“LHCP”)), and may form a focus toa side to which the beam is transmitted (f>0). In an embodiment, whenthe polarization of the incident beam is LHCP, the GP lenses 111 and 211may modulate the polarization rotating direction into the right (i.e.,LHCP to RHCP), and may form a focus to a side to which the beam is input(f<0). In an embodiment, when the polarization of the incident beam isstraight line polarization, the GP lenses 111 and 211 may not change thepolarization state of the beam and may transparently transmit the beam.That is, the sensor module 110 may provide two different photographingmodes by using two different focuses formed by the GP lens 111.

In an embodiment where the display panel 10 includes an organic lightemitting diode (“OLED”) panel, a polarizing plate of the OLED panel maysupport formation of the focus of the GP lens 111. That is, thepolarizing plate of the OLED panel may modulate the beam input to theopening 11 to provide the well-defined polarization beam to the GP lens111 of the sensor module 110, so the GP lens 111 allows the camerasystem to be operated in a multi-mode by using the beam polarized by thepolarizing plate of the display panel 10.

Referring to FIG. 1 , in an embodiment, a lens module 210 may beprovided in the second body 200, and the lens module 210 may include aGP lens 211 and at least one optical lens 212. In an embodiment, thelens module 210 may include a plurality of GP lenses 211.

The beam input through the opening 220 formed in the second body 200 maypass through the lens module 210, may pass through the opening 12 formedin the display panel 10, and may be transmitted to the image sensor 113of the sensor module 110 when the display panel 10 is folded in anin-folding way and the sensor module 110 and the lens module 210 overlapeach other. When the mobile device is completely folded, the beam inputthrough the opening 220 of the second body 200 may pass through the lensmodule 210 and may be transmitted to the sensor module 110 through theopening 12. That is, as the first body 100 and the second body 200 arerotated with respect to the rotation member 20 and overlap each other,the mobile device may be completely folded, and in such a state, anoptical axis of the sensor module 110 may match an optical axis of thelens module 210, and the sensor module 110 and the lens module 210 mayconfigure one common camera system.

In an embodiment, positions of the openings 11 and 12 are symmetric withrespect to a folding center line of the display panel 10, so the beaminput through the opening 220 of the second body 200 when the mobiledevice is completely folded may pass through the openings 11 and 12 andmay reach the image sensor 113 of the sensor module 110, which will nowbe described in detail with reference to FIG. 2 .

FIG. 2 shows a cross-sectional view of a camera system of a foldedmobile device according to an embodiment.

When the mobile device is completely folded, the sensor module 110 andthe lens module 210 respectively installed in different bodies orportions of the folded mobile device configure one common opticalsystem, and may be operable as a common camera system. The beam ({circlearound (2)}) input through the opening 11 may pass through the lensmodule 210 and may reach the sensor module 110 through the openings 11and 12, and the beam ({circle around (2)}) input therethrough may beconverted into image data by the image sensor 113 of the sensor module110.

The opening 11 positioned on a side of the first body 100 and theopening 12 positioned on a side of the second body 200 may have a sameas size or different sizes from each other. In an embodiment, forexample, the opening 11 with a relatively big caliber is applicable tothe first body 100, and the caliber of the opening 11 may be greaterthan the caliber of the opening 12 to improve a light receiving amountwhen the sensor module 110 is operated as a single camera system.

The sensor module 110 and the lens module 210 operable as a singlecamera system through a connection of the first body 100 and the secondbody 200 may provide two or four different photographing modes.

In an embodiment, for example, when the sensor module 110 and the lensmodule 210 respectively include one of the GP lenses 111 and 211, the GPlens may provide two different focuses, so four photographing modes maybe realized or defined by a combination of the two GP lenses may berealized. When the focuses caused by the GP lens 111 of the sensormodule are denoted by f₁₁ and f₁₂, and the focuses caused by the GP lens211 of the lens module 210 are denoted by f₂₁ and f₂₂, fourphotographing modes may be provided by the combination of the respectivefocuses [i.e., (f₁₁, f₂₁), (f₁₁, f₂₂), (f₁₂, f₂₁), and (f₁₂, f₂₂)].

In such an embodiment where the sensor module 110 or the lens module 210includes the GP lens 111 or 211, the common camera system may provide atleast two photographing modes based on at least two focuses that may beformed by the GP lens 111 or 211. In an embodiment, for example, whenthe sensor module 110 includes the GP lens 111, two photographing modesmay be realized by the two different focuses f₁₁ and f₁₂. In anembodiment where the lens module 210 includes the GP lens 211, twodifferent photographing modes may be realized by the two differentfocuses f₂₁ and f₂₂. Here, the two photographing modes by the sensormodule 110 may be different from the two photographing modes by the lensmodule 210.

FIG. 3 shows a cross-sectional view of a camera system of a mobiledevice according to an alternative embodiment.

Referring to FIG. 3 , in an embodiment, the first body 100 and thesecond body 200 of the mobile device may respectively support thedisplay panel 10, and the mobile device may be an out-folding mobiledevice folded to expose the display panel 10 to the outside when thefirst body 100 overlaps the second body 200. When the first body 100 andthe second body 200 are unfolded (i.e., when the first body 100 and thesecond body 200 form the angle of about 180°) with respect to therotation member 20, the display panel 10 are unfolded to form a maximumarea, and when the first body 100 and the second body 200 overlap eachother (i.e., when the first body 100 and the second body 200 form theangle of about 0°), the display panel 10 may not be exposed.

The sensor module 110 installed in the first body 100 may convert thebeam ({circle around (3)}) input through the opening 120 of the firstbody 100 into image data. In this case, the sensor module 110 receivesthe beam through the opening 120 installed in an opposite side of thedisplay panel 10 on the first body 100, so an additional display ormirror may be installed on the opposite side of the display panel 10 ofthe first body 100 to photograph a selfie.

The GP lens 111 of the sensor module 110 may produce two focuses, andthe sensor module 110 may provide two photographing modes using twofocuses produced by the GP lens 111.

In an embodiment, when the mobile device is completely folded, the lensmodule 210 installed in the second body 200 may transmit the beam inputthrough the opening 11 formed inside the display panel 10 or installedthrough the display panel 10 through the opening 220 of the second body200. The opening 11 for the lens module 210 may be formed(under-paneled) in the display panel 10 or may have a shape (a punchhole) defined through the display panel 10. An embodiment of the camerasystem when a mobile device is folded will now be described withreference to FIG. 4 .

FIG. 4 shows a cross-sectional view of a camera system of a foldedmobile device according to an alternative embodiment.

Referring to FIG. 4 , in an embodiment, when the sensor module 110 andthe lens module 210 of the mobile device is folded in an out-foldingway, the beam ({circle around (4)}) input through the opening 11 of thedisplay panel 10 may pass through the lens module 210 and may reach thesensor module 110 through the openings 220 and 120 of the respectivebodies. The beam ({circle around (4)}) may be converted into image databy the image sensor 113 of the sensor module 110.

In such an embodiment, the mobile device in an out-folding way mayprovide four photographing modes to the maximum through combination ofthe GP lenses included in the sensor module 110 and/or the lens module210. In an embodiment, for example, when the sensor module 110 and thelens module 210 respectively include one of the GP lenses 111 and 211,four photographing modes may be provided through the combination of thefocuses of the respective GP lenses 111 and 211. In an embodiment wherethe sensor module 110 or the lens module 210 includes the GP lens, twophotographing modes may be respectively provided according to twodifferent focuses that may be generated by the GP lens. In such anembodiment, the two photographing modes provided by the sensor module110 may be different from the two photographing modes provided by thelens module 210.

FIG. 5 shows a cross-sectional view of a camera system of a foldedmobile device according to another alternative embodiment.

Referring to FIG. 5 , an embodiment of the mobile device may be a mobiledevice in a three-side folding type that may be folded twice. A firstbody 100 and a second body 200 may be folded according to an in-foldingtype (displaying is not shown when folded), and the second body 200 anda third body 300 may be folded according to an out-folding type(displaying is exposed when folded). A sensor module 110 including a GPlens 111, at least one optical lens 112 and an image sensor 113 may beinstalled in the first body. Lens modules 210 and 310 respectivelyincluding at least one lens may be installed in the second body 200 andthe third body 300. The lens module 210 of the second body 200 mayinclude a GP lens 211 and at least one optical lens 212, and the lensmodule 310 of the third body 300 may include a GP lens 311 and at leastone optical lens 312.

The beam ({circle around (5)}) initially input through the opening 13 ofthe display panel may pass through the lens module 310 of the third body300 and may reach the lens module 210 of the second body 200 through theopening 320 of the third body 300 and the opening 220 of the secondbody. The beam having passed through the lens module 210 of the secondbody 200 may reach the sensor module 110 through the opening 12 and theopening 11 of the display panel 10. The beam having reached the sensormodule 110 may be converted into image data by the image sensor 113.

When the sensor module 110 and the lens modules 210 and 310 include asingle GP lens, the camera system formed by a combination of the sensormodule 110 and the lens modules 210 and 310 may provide eightphotographing modes as a maximum. In an embodiment, for example, whenthe focuses caused by the GP lens 111 of the sensor module are denotedby f₁₁ and f₁₂, the focuses caused by the GP lens 211 of the lens module210 of the second body 200 are denoted by f₂₁ and f₂₂, and the focusescaused by the GP lens 311 of the lens module 310 of the third body 300are denoted by f₃₁ and f₃₂, the focus combinations that may be providedby three GP lenses may be [(f₁₁, f₂₁, f₃₁), (f₁₁, f₂₂, f₃₁), (f₁₂, f₂₁,f₃₁), (f₁₂, f₂₂, f₃₁), (f₁₁, f₂₁, f₃₂), (f₁₁, f₂₂, f₃₂), (f₁₂, f₂₁,f₃₂), and (f₁₂, f₂₂, and f₃₂)].

In an embodiment where two of the sensor module 110 and the lens modules210 and 310 respectively include a single GP lens (three cases), thecamera system formed by the combination of the sensor module 110 and/orthe lens modules 210 and 310 may provide four photographing modes, andthe total of twelve photographing modes may be different from eachother.

In an embodiment where one of the sensor module 110 and the lens modules210 and 310 includes a single GP lens (three cases), the camera systemformed by the GP lens included in the sensor module 110 or the lensmodules 210 and 310 may provide two photographing modes, and the totalof six photographing modes may be different from each other.

In an embodiment, the respective bodies of the mobile device in athree-side folding type may be folded in an in-folding way or anout-folding way. In an embodiment where the respective bodies of themobile device in a three-side folding type are folded in an in-foldingway, the beam input to the mobile device may be input through theopening positioned in the body in a like manner of the embodimentdescribed with reference to FIG. 1 , and may be transmitted among therespective bodies through the opening in the display panel, and anyrepetitive detailed description thereof will be omitted. When therespective bodies of the mobile device in a three-side folding type arefolded in an out-folding way, the beam input to the mobile device may beinput through the opening positioned in the display panel in a likemanner of the embodiment described with reference to FIG. 4 , and may betransmitted among the respective bodies through the opening in therespective bodies, and any repetitive detailed description thereof willbe omitted.

FIG. 6 shows a perspective view of an in-folding mobile device accordingto an embodiment.

Referring to FIG. 6 , in an embodiment of the in-folding mobile device,the sensor module 110 and the lens module 210 may be respectivelyinstalled in one of end portions of the first body 100 and the secondbody 200, and the positions of the sensor module 110 and the lens module210 may be symmetric with respect to the folding center line (virtual orimaginary line) of the display panel 10. When the mobile device iscompletely unfolded, the sensor module 110 may be installed in one endof the first body 100, and the lens module 210 may be one end of thesecond body 200 and may be installed in another end of the mobiledevice.

FIG. 7 shows a perspective view of an in-folding mobile device accordingto an alternative embodiment.

Referring to FIG. 7 , in an alternative embodiment of the in-foldingmobile device, the sensor module 110 and the lens module 210 may berespectively installed in one of side portions of the first body 100 andthe second body 200, and the positions of the sensor module 110 and thelens module 210 may be symmetric with respect to the folding center lineof the display panel 10. When the mobile device is completely unfolded,the sensor module 110 may be installed in one side of the first body100, and the lens module 210 may be installed in the same side of thesecond body 200. That is, the sensor module 110 and the lens module 210may be positioned on a same side of the mobile device.

Detailed configurations of the sensor module and the lens module willnow be described in detail.

FIG. 8 shows a schematic view of a camera system according to anembodiment, and FIG. 9 shows a schematic view of a camera systemaccording to an alternative embodiment.

According to an embodiment, the lens module 210 may include apolarization selecting device 213 disposed on the GP lens 111 of thesensor module 110 or the GP lens 211. In such an embodiment, the sensormodule 110 may further include a polarization selecting device 114disposed on the image sensor 113. In an alternative embodiment, as shownin FIG. 9 , a polarization selecting device 114 may be disposed on theGP lenses 111 and 211 or the image sensor 113.

The polarization selecting device may be a polarizing plate, a waveretarder array, or a polarization modulate device. The polarizationselecting device may be an electrical device or a mechanical device fordynamically switching a polarization angle. In an alternativeembodiment, the polarization selecting device may be a passive devicefor transmitting different polarization components in a spatiallydifferent way. The polarization selecting device may modulate thepolarization state of the incident beam into the polarization rotatingin one direction. In an embodiment, for example, the polarizationselecting device may modulate the polarization state of the beam intoRHCP or may modulate the polarization state of the beam into LHCP. In analternative embodiment, the polarization selecting device may modulatethe polarization state of the incident beam into the RHCP and the LHCP.Here, the polarization selecting device may be configured with orinclude a plurality of cells, and the beams input to the respectivecells may be modulated into the

RHCP or the LHCP. In an embodiment, for example, when the beam input toone of two neighboring cells is modulated into the RHCP, the beam inputto a cell neighboring the cell may be modulated into the LHCP.

The polarization selecting device may adjust the polarization angle ofthe beam input from the outside, such that an embodiment of the camerasystem may adjust a viewing angle of the photographing mode bycontrolling the polarization selecting device. The camera system maysimultaneously photograph images with different viewing angles bycontrolling the polarization selecting device.

Referring to FIG. 8 , the polarization selecting device 213 may bedisposed in front of the GP lens 211 in the lens module 210 with respectto the incident direction of the beam. The beam input to the lens module210 from the outside of the mobile device may be modulated intodifferent polarization states by the polarization selecting device 213,and may then be refracted by the GP lens 211 according to differentfocuses. When the polarization states of the beams input to the lensmodule 210 from the outside of the mobile device become different by theGP lens, the images may be photographed with two different viewingangles. The images photographed with two different viewing angles may beused for image stabilization and image depth measurement.

Referring to FIG. 8 , the beam 1 may be refracted to have a real focusby the GP lens 211 after the polarization state is determined by thepolarization selecting device 213, and the beam 2 may be refracted tohave a virtual focus by the GP lens 211 after the polarization state isdetermined by the polarization selecting device 213. The beam 1 and thebeam 2 transmitted to the sensor module 110 may pass through the GP lens111 and may be refracted in different directions. Referring to FIG. 8 ,the beam 1 refracted to have a real focus by the GP lens 211 may berefracted to have a virtual focus by the GP lens 111 of the sensormodule 110. The beam 2 refracted to have a virtual focus by the GP lens211 may be refracted to have a real focus by the GP lens 111 of thesensor module 110.

Referring to FIG. 9 , in an alternative embodiment, the polarizationselecting device 114 may be disposed in front of the image sensor 113with respect to the incident direction of the beam in the sensor module110. In an embodiment where the sensor module 110 includes the GP lens111, another polarization selecting device may be disposed in front ofthe GP lens 111 with respect to the incident direction of the beam.

FIG. 10 shows a schematic view of a sensor module according to anembodiment, and FIG. 11 shows a schematic view of a sensor moduleaccording to an alternative embodiment.

Referring to FIG. 10 and FIG. 11 , in an embodiment, the sensor modulemay be a stackable image sensor 113 for solving a drawback of theunder-panel camera by using a chromatic aberration characteristic of theGP lens 111. Because of the chromatic aberration characteristic of theGP lens 111, RGB (red, green, and blue) components may be separated fromone beam input to the GP lens 111, and the stackable image sensor 113may process the RGB components of the beam to generate three sets ofimage data (i.e., red band image data, green band image data, and blueband image data).

Referring to FIG. 10 , the red band beam may have the greatestrefractive index, the blue band beam may have the least refractiveindex, and the green band beam may have a refractive index between thegreatest refractive index and the least refractive index. In such anembodiment, to respectively process the beams refracted with differentrefractive indexes by the GP lens 111, the stackable image sensor 113may include three processing layers stacked in order of the red band,the green band, and the blue band.

Referring to FIG. 11 , in an alternative embodiment, the blue band beammay have the greatest refractive index, the red band beam may have theleast refractive index, and the green band beam may have the refractiveindex between the greatest refractive index and the least refractiveindex. In such an embodiment, to respectively process the beamsrefracted with different refractive indexes by the GP lens 111, thestackable image sensor 113 may include three processing layers stackedin order of the blue band, the green band, and the red band.

Embodiments of the stackable image sensor 113 described with referenceto FIG. 10 and FIG. 11 may solve the problem of a light receiving amountof the beam input after passing through the display panel 10 byindividually processing the RGB components of the beam. In such anembodiment, a camera system with a big caliber may be provided below thepanel using a thin GP lens, thereby overcoming the structural limit ofthe multiple camera system. The image data are selectively chosenaccording to a wavelength, thereby suppressing an image qualitydeteriorating phenomenon that may be caused by a diffraction generatedby a lattice structure of the panel.

FIG. 10 and FIG. 11 show a method for using chromatic aberration of theGP lens 111 in the sensor module 110, and the chromatic aberration ofthe GP lens 211 in the lens module 210 may also be used. In analternative embodiment, chromatic aberration of the GP lens 111 and theGP lens 211 may be used, and chromatic aberration of the GP lens 111 orthe GP lens 211 may be used and the other chromatic aberration may beremoved by using another method.

The chromatic aberration of the GP lens may be removed by two methods.In an embodiment, the chromatic aberration of a plurality of GP lensesmay be removed through a wavelength selective wave plate insertedbetween a plurality of GP lenses with different focuses. In such anembodiment, the GP lenses with different focuses have different valuesof chromatic aberration which may be appropriately combined. Thewavelength selective wave plate may differently rotate the polarizationstates for respective wavelengths. An optical lens or a diffractionoptical element (“DOE”) may be used to remove chromatic aberration ofthe GP lens. A material of the optical lens may be selected or adiffraction optical element may be designed to have chromatic aberrationthat is opposite to the chromatic aberration of the GP lens.

FIG. 12 shows a schematic view of a camera system of a foldable mobiledevice according to an embodiment.

FIG. 13 shows a schematic view of an optical path of a camera systemshown in FIG. 12 .

Referring to FIG. 12 , in an embodiment of the camera system of a mobiledevice, a zooming function may be realized according to a motion of animage sensor 113. In an embodiment, for example, the zooming function ofthe camera system may be realized in the sensor module 110 by moving theimage sensor 113 within a determined range in the sensor module 110. Theimage sensor 113 may be moved to be distant from or close to the opening11 (i.e., an incident point of the beam) in the sensor module 110. In anembodiment where the sensor module 110 does not include other lenses 111and 112, a working distance of the image sensor 113 may be increased tothe maximum. In an embodiment where the sensor module 110 does notinclude the lenses 111 and 112, the lens module 210 may function as thelenses that are not included in the sensor module 110.

In an alternative embodiment, the sensor module 110 may include a planelens or a GP lens occupying a relatively small space so that the sensormodule 110 may be operable as an individual camera system.

In a conventional camera system, the zooming function is realized bymoving the position of the lens. In an embodiment of the invention, thecamera system may realize the zooming function by remotely controllingthe position of the image sensor 113 in the sensor module 110 installedin another body that is not the lens module 210 with respect to theopening 11. The camera system may combine the motion of the image sensor113 and the multiple focuses of the GP lens, thereby realizing thezooming function with a wider range according to the polarization stateof the incident beam.

In an embodiment, the position of at least one lens included in the lensmodule 210 may be adjusted to be distant from or close to the opening 12or 220. In such an embodiment, the camera system may realize the zoomingfunction according to a combination of the motion of the image sensor113 and the motion of at least one lens in the lens module 210. In analternative embodiment, the camera system may realize the zoomingfunction according to the motion of the image sensor 113 in the sensormodule 110, the motion of at least one lens in the lens module 210, andthe combination of the plane lens or the GP lens included in the sensormodule 110.

In such an embodiment of the camera system, image quality may besubstantially improved in a low level illumination condition or in acondition in which the image is not stabilized, by applying an opticalimage stabilizer (“OIS”) with a high specification using a wide spacefor moving the image sensor 113 provided in the sensor module 110.

In FIG. 13 , viewing angles and optical paths of various zoomingfunctions through the motion of the image sensor 113 are shown.

FIG. 14A, FIG. 14B and FIG. 15 show schematic views of a camera systemof a mobile device according to an alternative embodiment.

In an embodiment, as shown in FIGS. 14A and 14B, the sensor module 110of the camera system of the mobile device may include three imagesensors 114, 115, and 116, and the three image sensors 114, 115, and 116may convert the beams with different wavelength bands into image data.The sensor module 110 may further include a light transmitter (notshown) for transmitting the beams that are input through the opening 11to the respective image sensors 114, 115, and 116.

In an embodiment, the three image sensors may include a red band imagesensor 114, a green band image sensor 115, and a blue band image sensor116. The beams with different wavelength bands are processed bydifferent image sensors, thereby increasing the light receiving amount.The image data are selectively chosen according to the wavelengths,thereby suppressing the image quality deteriorating phenomenon that maybe caused by the diffraction generated by the lattice structure of thepanel.

Referring to FIGS. 14A and 14B, a red band image sensor 114, a greenband image sensor 115, and a blue band image sensor 116 are arranged onrespective sides of the sensor module 110 that forms a hexahedron.According to the embodiment, a plurality of image sensors for processingbeams with different bandwidths may be arranged in an inner space of thesensor module 110, and when the sensor module 110 overlaps the lensmodule 210 according to a folding manipulation of the mobile device, animage of a photographed object may be formed on a plurality of imagesensors by the lens module 210.

Referring to FIG. 14B, an embodiment of the sensor module 110 may have ahexahedron shape, but the sensor module 110 may have anotherthree-dimensional shape, and a plurality of image sensors may bedisposed on a predetermined portion of the three-dimensional shape. Inan alternative embodiment, a red band image sensor 114, a green bandimage sensor 115, and a blue band image sensor 116 may be sequentiallyarranged on a two-dimensional plane. In such an embodiment where the redband image sensor 114, the green band image sensor 115, and the blueband image sensor 116 are arranged on a plane, an additional opticalsystem including a mirror and/or a lens may be used to control paths ofthe red band beam, the green band beam, and the blue band beam.

In an embodiment where the sensor module 110 or the lens module 210includes a GP lens, the red band beam, the green band beam, and the blueband beam may respectively reach the red band image sensor 114, thegreen band image sensor 115, and the blue band image sensor 116positioned on different points in the sensor module 110 according to achromatic aberration characteristic of the GP lens.

The optical system may be variously modified so that the sensor module110 may be efficiently disposed in the first body 100. Referring to FIG.15 , the optical system may further include a mirror 117 and a lens 118.The beam input through the opening 11 may be reflected and refracted bythe mirror 117 and the lens 118 to reach the sensor module 110.

The sensor module 110 may include a plane lens or a GP lens occupying arelatively small space so that the sensor module 110 may be operable asa camera system in embodiments of FIG. 14 and FIG. 15 .

According to embodiments of the disclosure, as described above, when themobile device is folded in an in-folding or out-folding way, the sensormodule and the lens module included in the respective bodies are used asone common camera system, thereby solving the problem of the physicalspace limit of the camera system installed in the mobile device. In anembodiment where the image sensor is disposed in the sensor module,space usability of the camera system may be maximized. In an embodiment,the photographing mode with a plurality of viewing angles in a narrowarea by using the GP lens may be realized.

FIG. 16 shows a perspective view of a sliding-type mobile deviceaccording to an embodiment.

In an embodiment, the first body 100 and the second body 200 of themobile device may overlap each other according to a sliding method.Before the respective bodies of the mobile device overlap each other,the sensor module 110 included in the first body 100 may be operated asan individual optical system, and after the first body 100 and thesecond body 200 of the mobile device overlap each other, the sensormodule 110 included in the first body 100 and the lens module 210included in the second body 200 may be operated as one common camerasystem.

Referring to FIG. 16 , when the second body 200 slides and the firstbody 100 overlaps the second body 200, optical axes of the sensor module110 and the lens module 210 correspond to each other, so the sensormodule 110 and the lens module 210 may configure one common camerasystem.

FIG. 17 shows a perspective view of a pivot-type mobile device accordingto an embodiment.

In an embodiment, the second body 200 of the mobile device may rotateaccording to a pivoting method to overlap the first body 100 orconfigure 90° with respect to the first body 100. Before or afterpivoting the second body 200, the sensor module 110 in the first body100 and the lens module in the second body 200 may configure one commoncamera system.

Referring to FIG. 17 , when the second body 200 is pivoted by the angleof about 90° with respect to the first body 100, the optical axes of thesensor module 110 and the lens module 210 correspond to each other, andthe sensor module 110 and the lens module 210 may be operated as onecommon camera system.

In an embodiment, the optical axes of the sensor module 110 and the lensmodule 210 may not correspond to each other when the first body 100overlaps the second body 200, and the beam input to the lens module 210may be transmitted to the sensor module 110 by the optical connectionmember for connecting the sensor module 110 and the lens module 210. Inan alternative embodiment, when the first body 100 overlaps the secondbody 200, the optical axes of the sensor module 110 and the lens module210 may correspond to each other according to the positions of thesensor module 110 and the lens module 210 in the respective bodies.

In embodiments, when the mobile device is folded in an in-folding orout-folding way, the sensor module and the lens module included in therespective bodies are used as one common camera system, thereby solvingthe physical space limit of the camera system installed in the mobiledevice. In embodiments where the image sensor is disposed in the sensormodule, space usability of the camera system may be maximized. In suchembodiments, the photographing mode having a plurality of viewing anglesin the narrow area may be provided or realized by using the GP lens.

The invention should not be construed as being limited to theembodiments set forth herein. Rather, these embodiments are provided sothat this disclosure will be thorough and complete and will fully conveythe concept of the invention to those skilled in the art.

While the invention has been particularly shown and described withreference to embodiments thereof, it will be understood by those ofordinary skill in the art that various changes in form and details maybe made therein without departing from the spirit or scope of theinvention as defined by the following claims.

What is claimed is:
 1. A camera system of a mobile device, comprising: asensor module disposed in a first body connected to a rotation member ofthe mobile device, wherein the sensor module includes an image sensor;and a lens module disposed in a second body connected to the rotationmember, wherein the lens module includes a first geometry phase lens andat least one optical lens, wherein the sensor module and the lens moduleare disposed below a surface of a display panel supported by the firstbody and the second body, and the display panel is foldable in anin-folding way, when the first body and the second body are rotated withrespect to the rotation member to overlap each other, the sensor moduleand the lens module are operated as a common camera system, a first beaminput through the lens module passes through at least one opening of thedisplay panel folded in the in-folding way and is processed by the imagesensor, and the common camera system provides a first photographing modeand a second photographing mode with different viewing angles based ontwo focuses generated by the first geometry phase lens.
 2. The camerasystem of claim 1, wherein the sensor module further includes a secondgeometry phase lens, the sensor module is selectively operated as anindividual camera system, and when the sensor module is operated as theindividual camera system to convert a second beam input from the displaypanel into image data, the sensor module provides a third photographingmode and a fourth photographing mode with different viewing angles basedon two focuses generated by the second geometry phase lens.
 3. Thecamera system of claim 2, wherein when the sensor module is operated asthe common camera system with the lens module to convert the first beaminto image data, the sensor module and the lens module provide a fifthphotographing mode, a sixth photographing mode, a seventh photographingmode, and an eighth photographing mode with different viewing anglesbased on the two focuses generated by the first geometry phase lens andthe two focuses generated by the second geometry phase lens.
 4. Thecamera system of claim 1, wherein the lens module further includes apolarization selecting device in front of the first geometry phase lenswith respect to an incident direction of the first beam, and thepolarization selecting device electrically or mechanically modulates apolarization state of a beam input to the first geometry phase lens. 5.The camera system of claim 2, wherein the sensor module further includesa polarization selecting device in front of the image sensor withrespect to an incident direction of the second beam, and thepolarization selecting device electrically or mechanically modulates apolarization state of a beam input to the image sensor.
 6. The camerasystem of claim 2, wherein the sensor module further includes a firstpolarization selecting device in front of the image sensor and a secondpolarization selecting device in front of the second geometry phase lenswith respect to an incident direction of the second beam, the firstpolarization selecting device electrically or mechanically modulates apolarization state of a beam input to the image sensor, and the secondpolarization selecting device electrically or mechanically modulates apolarization state of a beam input to the second geometry phase lens. 7.The camera system of claim 1, wherein the image sensor includes a redband processing layer, a green band processing layer, and a blue bandprocessing layer, and the red band processing layer, the green bandprocessing layer, and the blue band processing layer respectivelyprocess a red band beam, a green band beam, and a blue band beamrefracted with different refractive indexes by the first geometry phaselens.
 8. The camera system of claim 7, wherein the red band processinglayer, the green band processing layer, and the blue band processinglayer are stacked in order of the red band processing layer, the greenband processing layer, and the blue band processing layer with respectto the incident direction of the first beam in the image sensor.
 9. Thecamera system of claim 7, wherein the red band processing layer, thegreen band processing layer, and the blue band processing layer arestacked in order of the blue band processing layer, the green bandprocessing layer, and the red band processing layer with respect to theincident direction of the first beam in the image sensor.
 10. The camerasystem of claim 1, wherein the image sensor includes a red band imagesensor, a green band image sensor, and a blue band image sensor, and thered band image sensor, the green band image sensor, and the blue bandimage sensor are respectively disposed on a predetermined side in athree-dimensional shape of the image sensor.
 11. The camera system ofclaim 1, wherein the image sensor includes a red band image sensor, agreen band image sensor, and a blue band image sensor, and the red bandimage sensor, the green band image sensor, and the blue band imagesensor are respectively disposed on a two-dimensional plane of the imagesensor.
 12. The camera system of claim 1, wherein the sensor modulerealizes a zooming function together with the lens module by moving theimage sensor within a predetermined range of the sensor module.
 13. Thecamera system of claim 1, wherein the at least one opening includes afirst opening corresponding to the sensor module and a second openingcorresponding to the lens module, and when the display panel is foldedin the in-folding way, the first beam passes through the first openingand the second opening and is transmitted to the sensor module in thelens module, and the first opening and the second opening have differentsizes from each other.
 14. The camera system of claim 13, wherein thefirst opening is bigger than the second opening.
 15. The camera systemof claim 1, wherein the at least one opening is disposed inside or belowthe display panel, and a plurality of fine holes is defined in apredetermined portion of the display panel to overlap the at least oneopening, or a part of the display panel is transparent.
 16. A camerasystem of a mobile device comprising: a sensor module disposed in afirst body connected to a rotation member of the mobile device, whereinthe sensor module includes an image sensor; and a lens module disposedin a second body connected to the rotation member, wherein the lensmodule includes a first geometry phase lens, wherein the sensor moduleand the lens module are disposed below a surface of a display panelsupported by the first body and the second body, the display panel isfoldable in an out-folding way, when the first body and the second bodyare rotated with respect to the rotation member to overlap each other,the sensor module and the lens module are operated as a common camerasystem, a first beam input through the display panel folded in theout-folding way passes through respective openings in the sensor moduleand the lens module and is processed by the image sensor, and the commoncamera system provides a first photographing mode and a secondphotographing mode with different viewing angles based on two focusesgenerated by the first geometry phase lens.
 17. The camera system ofclaim 16, wherein the sensor module further includes a second geometryphase lens, the sensor module is selectively operated as an individualcamera system, and when the sensor module is operated as an individualcamera system to convert a second beam input from a first opening in thesensor module into image data, the sensor module provides a thirdphotographing mode and a fourth photographing mode with differentviewing angles based on two focuses generated by the second geometryphase lens.
 18. The camera system of claim 17, wherein when the sensormodule is operated as the common camera system with the lens module toconvert the first beam into image data, the sensor module and the lensmodule provide a fifth photographing mode, a sixth photographing mode, aseventh photographing mode, and an eighth photographing mode withdifferent viewing angles based on the two focuses generated by the firstgeometry phase lens and the two focuses generated by the second geometryphase lens.
 19. The camera system of claim 16, wherein the lens modulefurther includes a polarization selecting device in front of the firstgeometry phase lens with respect to an incident direction of the firstbeam, and the polarization selecting device electrically or mechanicallymodulates a polarization state of a beam input to the first geometryphase lens.
 20. The camera system of claim 17, wherein the sensor modulefurther includes a polarization selecting device in front of the imagesensor with respect to an incident direction of the second beam, and thepolarization selecting device electrically or mechanically modulates apolarization state of a beam input to the image sensor.
 21. The camerasystem of claim 17, wherein the sensor module further includes a firstpolarization selecting device in front of the image sensor with respectto an incident direction of the second beam and a second polarizationselecting device in front of the second geometry phase lens, the firstpolarization selecting device electrically or mechanically modulates apolarization state of a beam input to the image sensor, and the secondpolarization selecting device electrically or mechanically modulates apolarization state of a beam input to the second geometry phase lens.22. The camera system of claim 16, wherein the image sensor includes ared band processing layer, a green band processing layer, and a blueband processing layer, and the red band processing layer, the green bandprocessing layer, and the blue band processing layer respectivelyprocess a red band beam, a green band beam, and a blue band beamrefracted with different refractive indexes by the first geometry phaselens.
 23. The camera system of claim 22, wherein the red band processinglayer, the green band processing layer, and the blue band processinglayer are stacked in order of the red band processing layer, the greenband processing layer, and the blue band processing layer with respectto the incident direction of the first beam in the image sensor.
 24. Thecamera system of claim 22, wherein the red band processing layer, thegreen band processing layer, and the blue band processing layer arestacked in order of the blue band processing layer, the green bandprocessing layer, and the red band processing layer with respect to theincident direction of the first beam in the image sensor.
 25. The camerasystem of claim 16, wherein the image sensor includes a red band imagesensor, a green band image sensor, and a blue band image sensor, and thered band image sensor, the green band image sensor, and the blue bandimage sensor are respectively disposed on a predetermined side in athree-dimensional shape of the image sensor.
 26. The camera system ofclaim 16, wherein the image sensor includes a red band image sensor, agreen band image sensor, and a blue band image sensor, and the red bandimage sensor, the green band image sensor, and the blue band imagesensor are respectively disposed on a two-dimensional plane of the imagesensor.
 27. The camera system of claim 16, wherein the sensor modulerealizes a zooming function together with the lens module by moving theimage sensor within a predetermined range of the sensor module.
 28. Thecamera system of claim 16, wherein when the display panel is folded inthe out-folding way, the first beam passes through the display panel andis then transmitted to the sensor module from the lens module through afirst opening in the lens module and a second opening in the sensormodule, and the first opening and the second opening have a same size aseach other.
 29. The camera system of claim 16, wherein a first openingin the lens module is disposed inside or below the display panel, and aplurality of fine holes is defined in a predetermined portion of thedisplay panel to overlap the first opening, or a part of the displaypanel is transparent.
 30. A camera system of a mobile device comprising:a sensor module disposed in a first body connected to a first rotationmember of the mobile device, wherein the sensor module includes an imagesensor; a first lens module disposed in a second body respectivelyconnected to a first rotation member and a second rotation member of themobile device, wherein the first lens module includes a first geometryphase lens; and a second lens module disposed in a third body connectedto the second rotation member, wherein the second lens module includes asecond geometry phase lens, wherein the sensor module, the first lensmodule, and the second lens module are disposed below a surface of adisplay panel supported by the first body, the second body, and thethird body, and the first body and the second body are foldable withrespect to the first rotation member and overlap each other in anin-folding way and the second body and the third body are foldable withrespect to the second rotation member and overlap each other in anout-folding way, when the first body and the second body are rotatedwith respect to the first rotation member to overlap each other in thein-folding way and the second body and the third body are rotated withrespect to the second rotation member to overlap each other in theout-folding way, the sensor module, the first lens module, and thesecond lens module are operated as a common camera system, and thecommon camera system provides four photographing modes with differentviewing angles based on two focuses generated by the first geometryphase lens and two focuses generated by the second geometry phase lens.31. A camera system of a mobile device comprising: a sensor moduledisposed in a first body connected to a rotation member of the mobiledevice; and a lens module disposed in a second body connected to therotation member, wherein when the first body and the second body arerotated with respect to the rotation member to overlap each other,optical axes of the sensor module and the lens module correspond to eachother and are operated as a common camera system, and the common camerasystem provides a first photographing mode and a second photographingmode with different viewing angles based on two focuses generated by afirst geometry phase lens included in the lens module.